The Bolt,machine, cataloged under National Stock Number 5306-01-618-1802, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Nd Defense Llc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-618-1802 |
| Primary Part Number | 30977R1 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Nd Defense Llc |
| Status | ACTIVE |
| Head Height | 12.12 MILLIMETERS MINIMUM AND 13.40 MILLIMETERS MAXIMUM MM |
| Fastener Length | 100.0 MILLIMETERS NOMINAL MM |
| Thread Pitch in Millimeters | 2.5 |
| Thread Length | 46.0 MILLIMETERS NOMINAL MM |
| Nominal Thread Diameter | 20.0 MILLIMETERS MM |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 29.16 MILLIMETERS MINIMUM AND 30.00 MILLIMETERS MAXIMUM MM |
| Thread Class | 6G G |
| Material | STEEL OVERALL |
| Thread Series Designator | M |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 30977R1 PRIMARY | Nd Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| ESP-BM-4.121-PP | D/9 Drawing number reference only Nd Defense Llc |
NSN 5306-01-618-1802 is a Bolt,machine, manufactured by Nd Defense Llc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-618-1802 has 1 manufacturer part number on file: 30977R1 (Nd Defense Llc).
Key specifications for 30977R1: Head Height: 12.12 MILLIMETERS MINIMUM AND 13.40 MILLIMETERS MAXIMUM MM; Fastener Length: 100.0 MILLIMETERS NOMINAL MM; Thread Pitch in Millimeters: 2.5; Thread Length: 46.0 MILLIMETERS NOMINAL MM. 11 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.